General Studies · Automobile Engineering

What happens when the driver presses the brake pedal in a hydraulic disc brake system?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1The brake drum rotates faster than the wheel to create counter torque
2Air pressure pushes the brake shoes onto the inner side of the disc
3Friction linings contract inward to stop the wheel axle directly
4Fluid pressure causes the pistons to push the brake pads against the rotating disc✓

Correct answer

Fluid pressure causes the pistons to push the brake pads against the rotating disc

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